Description: Executes a configured Excel import, optionally using an explicitly supplied workbook file.
Calling convention: CIP_CallExcelImport("ExcelImportName": String, ["XLSFileName": String='])
Parameters:
ExcelImportName: name of an existing Excel import definition.
XLSFileName: optional workbook path; when omitted or empty, the import handles file selection according to its own configuration.
Returns: Undefined on success. A missing import name or unknown import sets FALSE before raising an exception.
Availability: Default desktop environment with Excel import support.
Example:
CIP_CallExcelImport("ProductionImport", "C:\Imports\Production.xls");